Torymus celtidigalla Matsuo, 2009

Matsuo, Kazunori, 2020, A revision of Japanese Torymus Dalman (Hymenoptera: Torymidae), Zootaxa 4758 (3), pp. 401-441 : 417-418

Torymus celtidigalla Matsuo, 2009

Torymus celtidigalla Matsuo, 2009: 264 .

Specimens examined. Holotype: ♀, emerged on 2 April 2008 from a gall of Celticecis japonica collected by K. Matsuo on 12 November 2007 from the ground under Celtis sinensis var. japonica trees in Ino, Hisayama, Fukuoka, Japan (ELKU, Type No. 3263). Paratypes: 1 ♀, emerged on 14 April 2008 from a gall of Celticecis japonica collected by S. Yamauchi from the ground under Celtis jessoensis trees in Aomori, Aomori, Japan (ELKU); 1 ♀, emerged on 11 May 2000 from a gall of Celticecis japonica collected by K. Tabuchi from the ground under Celtis sinensis var. japonica trees in Matsudo, Chiba, Japan (NIAES); 1 ♀, collected by K. Kubo on 3 May 2003 from Ichinomiya, Chiba, Japan (ELKU); 1 ♀, collected by K. Kubo on 3 May 2003 from Ichinomiya, Chiba, Japan (HUM); 1 ♀, collected by K. Kubo on 3 May 2002 from Yokohama, Kanagawa, Japan (ELKU); 2 ♀, collected by K. Kubo on 3 May 2002 from Yokohama, Kanagawa, Japan (HUM); 1 ♀, collected by K. Kubo on 12 May 2002 from Yokohama, Kanagawa, Japan (HUM); 1 ♂, collected by K. Kubo on 27 April 2003 from Yokohama, Kana- gawa, Japan (ELKU); 1 ♂, collected by K. Kubo on 27 April 2003 from Yokohama, Kanagawa, Japan (HUM); 1 ♀, collected by K. Kubo on 11 May 2003 from Yokohama, Kanagawa, Japan (ELKU); 1 ♀, collected by K. Kubo on 11 May 2003 from Yokohama, Kanagawa, Japan (HUM); 1 ♀, emerged on 20 March 2007 from a gall of Celticecis japonica collected by K. Matsuo from the ground under Celtis sinensis var. japonica trees in Hakozaki, Fukuoka, Fukuoka, Japan (ELKU).

Distribution. Japan (Honshu, Kyushu).

Host information. Torymus celtidigalla is an ectoparasitoid of Celticecis japonica Yukawa and Tsuda ( Diptera : Cecidomyiidae ) that induces galls on Celtis sinensis Pers. var. japonica (Planch.) Nakai and C. jessoensis Koidz. (Cannabaceae) ( Matsuo & Yukawa 2009) (gall photo: fig. 26c, C–202 of Yukawa & Masuda 1996).